mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2025-01-10 21:11:20 +00:00
3e933bc456
On power-off recent "no-sync" txs may be lost. It will cause 2. cases: - Good piece on disk and recent "complete" db marker lost. Self-Heal by re-download. - Bad piece on dis and recent "incomplete" db marker lost. No Self-Heal. So, can't afford loosing recent "incomplete" markers.
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
/*
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Copyright 2021 Erigon contributors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mdbx
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import (
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"context"
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"os"
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"github.com/ledgerwatch/erigon-lib/kv"
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"github.com/ledgerwatch/log/v3"
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)
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type TemporaryMdbx struct {
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db kv.RwDB
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path string
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}
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func NewTemporaryMdbx() (kv.RwDB, error) {
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path, err := os.MkdirTemp("", "mdbx-temp")
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if err != nil {
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return &TemporaryMdbx{}, err
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}
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db, err := Open(path, log.Root(), false)
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if err != nil {
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return &TemporaryMdbx{}, err
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}
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return &TemporaryMdbx{
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db: db,
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path: path,
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}, nil
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}
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func (t *TemporaryMdbx) ReadOnly() bool { return t.db.ReadOnly() }
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func (t *TemporaryMdbx) Update(ctx context.Context, f func(kv.RwTx) error) error {
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return t.db.Update(ctx, f)
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}
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func (t *TemporaryMdbx) UpdateNosync(ctx context.Context, f func(kv.RwTx) error) error {
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return t.db.UpdateNosync(ctx, f)
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}
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func (t *TemporaryMdbx) BeginRw(ctx context.Context) (kv.RwTx, error) {
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return t.db.BeginRw(ctx)
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}
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func (t *TemporaryMdbx) BeginRwNosync(ctx context.Context) (kv.RwTx, error) {
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return t.db.BeginRwNosync(ctx)
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}
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func (t *TemporaryMdbx) View(ctx context.Context, f func(kv.Tx) error) error {
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return t.db.View(ctx, f)
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}
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func (t *TemporaryMdbx) BeginRo(ctx context.Context) (kv.Tx, error) {
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return t.db.BeginRo(ctx)
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}
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func (t *TemporaryMdbx) AllBuckets() kv.TableCfg {
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return t.db.AllBuckets()
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}
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func (t *TemporaryMdbx) PageSize() uint64 {
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return t.db.PageSize()
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}
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func (t *TemporaryMdbx) Close() {
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t.db.Close()
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os.RemoveAll(t.path)
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}
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